Instrument for administering anesthetics.



B. flwisl INSTRUMENT FOR ADMINISTERING ANESTHETICS.

APPLICATION FILED APR 14, I913.

Fatented Mar. 21, 1916v 2 SHEETSSHEET I.

F. B. JONES.

INSTRUMENT FOR ADMINISTERING ANESTHETICS.

APPLICATION FILED APR. 14. 1913.

3*atented Mar. 21, 1916.

2 SHEETS-SHEET 2.

FLOYD B. JONES, 0F CLEVELAND, OHIO.

INSTRUMENT FOR ADMINISTERING .ANES'IHETICS.

To all wliom it may concern:

Be it known that I, FLOYD B. JONES, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio,have' invented certain new and useful, Improvements in Instruments forAdministering Anesthetics, of which the following is a specification.

My invention comprises a new and useful instrument for anesthesia or.analgesiav administration, particularly in nose, mouth, throat or dentaloperative work, and the instrument is particularly constructed to givethe operator a free field for his work which is impossible with otherinstruments now in use, and is also particularly constructed to be heldand controlled by the patient so that the anesthetic or analgesic gas orgases may be cut off at any time or the administration of same continuedby him as he may determine or require. ,One of the principal virtues ofthe appliance is that a patient will freely consent to its use asconfidence is instilled in him from the fact that he has it underhis'own control at all times, whereas in strapping the ordinaryappliance in a fixed place over the nose and. around the head invariablycauses a patient to have a feeling of uncertainty and misgivingin shorta lack of confidence attended by more In the accompanying drawings,Figure 1 is a perspective view of the invention in use, and Fig. 2 is aperspective view of a modified form of the invention. Fig. 3 is a frontview and section of the instrument, and Fig. 4 is a side elevation andlongitudinal section of Fig. 3. Fi 5 is a front elevation of the plungervaFve and hand piece without the extension tubes.

The invention comprises a tubular handhold member 2 having a crosscylinder 3 in which a plunger valve 4 has a limited movement under thepressure of a coiled spring 5. A set screw 6 is provided in the end ofSpecification of Letters Patent.

Application filed April 14, 1913. Serial No. 761,057. a

cylinder 3 to change the tension of the sprlng, and a thumb screw 7projected through slot 8 in the side of cylinder 3 (Fig. i 5) limits theoutward movement of the valve and also provides a. means for locking thevalve in any desired position. Valve l'is hollow and has-a passage 9 inits side adapted to register with the intake tube 10 of member 2, andalso an opening 11 oppos te passage 9 to register with the dischargetube 12. Passage 9 is offset sufliciently in respect to opening 11 sothat it Will be closed by the wall of cylinder 3 when the valve ispressed outward to its limit by spring5, but'opening 11 remains inconstant register with the discharge tube 12 A slot 14 near the end ofvalve 4 perm1ts air to enter the -discharge tube 12 when valve 4 is inits normal position with passage 9 closed, Fig. 3. However, when thevalve is pressed inward by the thumb, see Flg. 1, the air intake slot 14is .closed and the gas is free to pass through the tubular member andout of'the two spreading extension tubes 15'having the nasal plugs 16.Tubes 15 are rigidly united with a knurled cap .17 which is removablyand rotatably sleeved over the end of discharge tube 12, and the saidtubes branch outwardly and upwardly and then toward each other at theirouter ends so that the instrument may rest longitudinally on the chestof the patient with the extension tubes spanning the face in a retiredposition relatively to the mouth of the patient. The operator is thusenabled to work in .the mouth or throat without the slightestinterference and his view is also unobstructed, and as the nasal plugs16 are held inrtheir place by the patient pressing upward on theinstrument no inconvenience is suffered by him. Moreover, the metaltubes 15 .yield and spring readily in different directions to give acomfortable fit, and the plugs 16 are also rotatably secured to the endsof the tubes 15 to. provide an accommodating movement between theseparts to enable the patient to change his position in the chair, eithervhead or body, without any loss of comfort to himselfor displacement ofthe plugs. As shown, these plugs are removably slee ed upon the shortelbows 18 to permit them to be cleaned and sterilized and to permitother sizes or kinds to be substituted therefor. The elbows 18 are alsoremovably mounted upon the ends of tubes 15, one

mode of doing this being as shown by a split elbow to spring-engage thebeaded ends 19 of the tubes 15. A separate elbow or equivalent member tosupport the plugs 18 is not absolutely essential, but is the preferredway in lieu of mounting them on the ends of the tubes 15 direct,especially in view of the advantages as described. Va-

rious mouth or nasal attachments may be.

used in lieu of the plugs, or the construction shown may be variouslymodified Without departing from the spirit and scope of the invention.To illustrate the use of a substitute appliance to cover the nose ormouth, see Fig. 2, wherein a small hood 20 is shown as attached to theends of the tubes 15 and by means of which the gas is administered. Thisdevice is provided with separate valved inhalation and exhalation.passages 21 and 22, respectively, such as shown in member 2, Fig.4. Theinhalation passage is for member 2 respresented by an openlng 23 in acap 24 which covers a thin aluminum disk valve 25 normally held bygravity upon, the grid portion 26 of the branch tube 27, and theexhalation passage is represented by the small openings 28 in thethimble-29 which is sleeved over the other branch tube 30 to house thethin disk valve 31 which is normally held closed by a light spring 32,the thumb screw 33 serving as an adjustable stop for the valve.

In operating the instrument the patient holds the same in either hand,with the valve plunger under his thumb. It will be noted that member 2can be rotated in respect to tubes 15 so that a comfortable hand gripcan be obtained without disturbing a fixed position oftubes 15. Now foranalgesic work the anesthetizing mixture is administered by the patientpressing down on the plunger valve. Should he feel that he desires moreair with the anesthetizing mixture he -releases the plunger and 'more orless air is admitted at slot 14. On the other hand should he feel' thathe is losing consciousness he can, by re:

leasing plunger valve, shut ofl the mixture entirely and admit free air.The device cuts ofi the gas automatically when the patient is losingconsciousness, as he relaxes enough "to allow the spring behind thevalve to ress.

the valve outward, thereby also admitting a free supply of air.

If the apparatus is to be used to induce anesthesia, the*valve can beheld open by means of the adjustable 'set screw 7 and the control isthen entirely in the hands of the operator.

One advantage of the instrument is that of economy in use as none of theanesthetizing or analgesic mixture is lostin opening or closing valve 4.Furthermore, by using applicators of plug form at the terminals ofarched discharge tubes, the upper lip of thepatient is uncovered andfree to be lifted at all points. In brief, the construction andoperation of the device is simple and easily understood and as theapplication and control is in the hands of the patient these factorsappeal to apatient, as a complicated device naturally produces anegative suggestion,a feeling of confusion and distrust. Again, when thepatient experiences the automatic workings of the instrument, fullconfidence is given and the patient quickly induces'an analgesiacondition which materially aids the operator in his work.

What I claim is:

1. An instrument for administering fluids or vapors, comprising a valvedmember adapted to be held and controlled by the individual undertreatment, said member having a rigid forked tubular extension withinwardly turned ends for local application of the fluid at the head ofthe individual. 2. An appliance. for anesthesia or analgesiaadministration, comprising a self-closing valve adapted to be held inthe hand and relatively long discharge tubes leading therefrom havingrigid arched extremities to span the face.

3. A gas and air administering device, comprising a tubular memberhaving an intake portion to connect with a source of gas supply andprovided with a self-closing valve, and tubular discharge extensionsbranching outwardly and upwardly and inwardly and having detachable androtatable connection with said member.

4. In an instrument of the kind described, a tubular body having a valveto control the flow of fluid therethrough, tubular discharge extensionsfor said body having arched extremities branching laterally in oppositedirections and thence at substantially right 05 angles thereto on curvedlines and again laterally toward each other substantially as shown, andapplicator members for said extremities.

5. In an instrument for administering anesthetics, a tubular body havinga valve, and

a set of diverging and arching discharge valve in differentfixed-positions, and applicator discharge members extending from saidbody.

-7. In an instrument for administering anesthetics, a tubular bodyhaving a pluiiger valve provided with separate passages and a spring forsaid valve to normally keep one of the passages closed and the otheropen, a device to-lock the valve in a set position, a

set of discharge tubes extending from said body, terminal appliances forsaidtubes, 12a

and a set of inhalation and exhalation valves for the instrument.

8. In in instrument for administering anesthetics, a tubular body havinga cross cylinder, a plunger valve and spring therefor mounted in saidcylinder, separate gas and air intake openings for said valve and acommon discharge passage for said gas and air, means to lock said valvein a set position, inhalation and exhalation valves in communicationwith said discharge passage, and a set of bifurcated discharge tubeshaving nasal plugs attheir extremities.

9. In an instrument of the kind described, a supply connection having avalve transversely thereof provided with a plurality of ports and aspring to close the same, and a bifurcated discharge connection havingupwardly and inwardly curved extremities and applicators to localize thedischarge products and forming a movable part thereof.

10. In an instrument for administering air and gas, a. tubular supplyconnection having a tubular transverse barrel, a tubular valve in saidbarrel to control both the air and gas having separate air and gas portsand diverging discharge tubes having arched ends projected divergentlyand then inwardly and provided with applicator members.

In testimony whereof I alfix my signature in presence of two witnesses.

' FLOYD B. JONES. Witnesses:

R. B. MOSER, "5. C. MfUssUN.

